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KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.

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Tributyltin oxide

Korean: 트라이부틸틴옥사이드 · CAS 56-35-9 ·

KR South Korea (MFDS)

No specific rule on file.

EU European Union (CosIng)

No specific rule on file.

US United States (FDA)

No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.

Other markets

How Tributyltin oxide is treated in 1 more market, from the overseas cosmetic regulation database compiled by Korea's MFDS. Always confirm with the regulator of that country before selling there.

Market	Status	Conditions
TW Taiwan	Prohibited	—

Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 17, 2026

Also listed as

Tributyltin oxide 트라이부틸틴옥사이드

Information only, not medical advice. Rules change — always check the linked official source. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist.

Frequently asked questions

Is Tributyltin oxide banned in the European Union?

We found no specific rule for it in the EU's CosIng records. That is not an approval or a safety statement.

Is Tributyltin oxide banned in South Korea?

We found no specific rule for it in Korea's MFDS records. That is not an approval or a safety statement.

Is Tributyltin oxide allowed in cosmetics in the U.S.?

We found no specific rule for it in the FDA's records. That is not an approval or a safety statement.

What is Tributyltin oxide called on Korean labels?

Korea's MFDS standard Korean name is 트라이부틸틴옥사이드.

What is the CAS number of Tributyltin oxide?

CAS 56-35-9 (from official records).